ACCELERATED SYNTHESIS OF TL (BI) HTS-MASSIVE CERAMIC SAMPLES WITH RECORD PARAMETERS AND THEIR PRACTICAL APPLICATION

The paper presents the results of the development and optimization of accelerated modes of the technology (6–10 hours instead of 50–60 hours) of obtaining massive samples of Tl (Bi) HTS ceramics with record parameters (superconducting junction temperatures (Tc) up to 205 K, the density of transport critical current (Jc) up to tens of thousands or more A/sm 2 ). The possibility of obtaining samples from Tc up to 150–205 K and above is shown. Information on the practical application of massive samples of HTS ceramics is given: tablets, massive samples, products. The total cost of products from new HTS materials in mass production will be significantly lower than that of HTS materials of the 2nd generation. According to our estimates, only the production of 1 km of transport power cable manufactured using this technology is 700–800 times cheaper than a similar cable in terms of physical parameters, made using “sandwich” technology. It is necessary to take into account the cheapness of operating a cable operating at the temperature of “dry ice” in comparison with the cost of servicing a power cable made using the technology of HTS materials of the 2nd generation and operating at a temperature of liquid nitrogen. The accelerated technological modes of synthesis of HTS-ceramics proposed by the authors and the theoretical processing of the results obtained largely solve the problem of implementing an accelerated production technology for obtaining